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A low heat leakage flexible cable

A flexible cable, low heat leakage technology, used in insulated cables, bendable cables, cables, etc., can solve the problems of high solid heat leakage and environmental test reliability, improve anti-disturbance ability, reduce solid heat leakage, The effect of reducing input power consumption

Active Publication Date: 2015-11-25
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of this patent is to provide a low-temperature infrared detector packaged in a Dewar low-leakage flexible cable structure to solve the excessive solid heat leakage and environmental test reliability caused by the high-density leads of large-scale low-temperature infrared detectors problems, while achieving highly integrated packaging of infrared detector Dewar leads

Method used

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  • A low heat leakage flexible cable

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Embodiment Construction

[0028] According to the above realization method, we designed and manufactured a low heat leakage flexible cable with a length of 200mm for the large area array Dewar project. The detector is a 1k×1kHgCdTe infrared shortwave detector. The upper conductive layer of the low heat leakage flexible cable And the lower conductive layer 2 is made of manganese-copper alloy material grade 6J12, the thickness is 35μm, and the length and width are 200×150mm; the coating layer 4 and the bonding layer 8 are made of epoxy adhesive material model JA751; the reinforcing layer 3 is made of polyimide The thickness of the amine material is 0.1mm, and the model is DuPont’s SP-3 film. The via hole 6 adopts a Φ0.2mm hole. There are 90 via holes evenly distributed on a low heat leakage flexible cable, and the metallization layer 7 in the hole is electroplated. Copper, the plating layer is 15 μm, and the gold layer thickness of the electrode gold plating layer 9 is 5 μm.

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Abstract

The invention discloses a low-heat-leakage flexible cable which is applied to the low-heat-leakage leading wire technology of a large-scale infrared focal plane detector in a dewar. Through low-thermal-conductivity metal machining, conducting layer surface laminating, high-accuracy mechanical hole drilling, a high-accuracy chemical etching process and a special metal electroplating process, machine-shaping of low-heat-leakage strip lines are achieved. According to the low-heat-leakage flexible cable, the low-heat-leakage requirement of a low-temperature infrared apparatus can be effectively guaranteed, solid conductivity of a chip (cold platform) to the constant-temperature end is lowered, the cooling amount requirement of an infrared detector dewar component on a refrigerator can be effectively lowered, and the low-heat-leakage flexible cable is also suitable for detector lead leading out in the packaging process of other radiant infrared detectors, thermoelectric cooling infrared detectors, and the like.

Description

technical field [0001] The invention relates to a flexible cable technology, in particular to a structure of a low-temperature low-heat-leakage flexible cable. The utility model is used for electrical connection between a cold platform and a room temperature shell, and belongs to the technical field of infrared detector packaging. Background technique [0002] Infrared detector components are widely used in the aerospace infrared field. As the wavelength expands to long wavelengths and the scale of the focal plane expands, mercury cadmium telluride infrared detectors must work at low temperatures. At the same time, higher requirements are put forward for the cooling capacity, cooling time, and cooling temperature of the Stirling refrigerator. At present, most of these detectors use mechanical cooling in space applications. In order to ensure the low-temperature operation requirements of the mercury cadmium telluride infrared focal plane detector chip, most of them adopt th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/04H01B7/00H01B7/02
Inventor 郝振贻曾智江王小坤李俊陈俊林龚海梅
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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